Post Reply 
Differnce between BPAP and A-FLex??
Author Message
MrEGuy Offline

Preferred Members

Posts: 27
Joined: Apr 2016

Machine: None
Mask Type: Not using mask
Mask Make & Model: none
Humidifier: none
CPAP Pressure: none
CPAP Software: Not using software

Other Comments:

Sex: Undisclosed
Location:

Post: #1
Differnce between BPAP and A-FLex??
Just a stray thought, one of the features of the trial machine my wife is using is that it has A-Flex to reduce the pressure while exhaling. This also seams to be similar to what I believe BPAP is in that a BPAP changes pressure to help the user exhale. Is it that BPAP has a measured change in pressure while the change in pressure from A-flex isn't necessarily a controlled one??
04-11-2016 04:13 AM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
DeepBreathing Offline
Wiki Editor
Moderators

Posts: 2,296
Joined: Sep 2013

Machine: Resmed S9 VPAP Adapt
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: Resmed H5i
CPAP Pressure: EPAP: 9 - 15 PS: 3 - 10
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: Perth, Western Australia

Post: #2
RE: Differnce between BPAP and A-FLex??
I'm not an expert in Philips machines, but I believe the flex settings are limited to 3 cm pressure relief. With a bpap the pressure support can go up to 15 cm, so there is potentially a very substantial difference.

DeepBreathing
Apnea Board Moderator
www.ApneaBoard.com


Bed

INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
04-11-2016 06:54 AM
Find all posts by this user Post Reply Quote this message in a reply
Sleeprider Online
Wiki Editor
Advisory Members

Posts: 3,381
Joined: Dec 2014

Machine: Resmed Aircurve 10 Vauto
Mask Type: Nasal pillows
Mask Make & Model: Resmed Airfit P10
Humidifier: Resmed Climateline
CPAP Pressure: Auto Bilevel 18/9, PS 3
CPAP Software: ResScan SleepyHead EncoreBasic

Other Comments:

Sex: Male
Location: Where they make Respironics

Post: #3
RE: Differnce between BPAP and A-FLex??
Flex provides a flow based pressure relief of up to 2-cmH2O pressure. The Resmed machines with EPR (exhale pressure relief) provide up to 3-cm. It does result in lower EPAP, but unlike a bilevel it is limited to 2-3 cm, while bilevels can use pressure support of a much wider range. Even with pressure relief, the machines are classified as CPAP and have significantly lower prices than BPAP, but it does blur the lines a bit.

______________________________________________
Organize your SleepyHead Data
Post your SleepyHead Data from Imgur
Robysue's Beginner's Guide to Sleepyhead
04-11-2016 11:14 AM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
PaulaO2 Offline
Wiki Editor
Moderators

Posts: 8,067
Joined: Feb 2012

Machine: S9 Autoset
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: H5i
CPAP Pressure: 14-20
CPAP Software: SleepyHead

Other Comments: Ehlers-Danlos Syndrome, Hypermobility Type; chronic sarcasm

Sex: Undisclosed
Location: western NC, USA

Post: #4
RE: Differnce between BPAP and A-FLex??
Some things to help you as you go along:

http://www.apneaboard.com/wiki/index.php...ical_terms

http://www.apneaboard.com/wiki/index.php?title=Acronyms

PaulaO2
Apnea Board Moderator
www.ApneaBoard.com


Breathe deeply and count to zen.

INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
04-11-2016 02:10 PM
Find all posts by this user Post Reply Quote this message in a reply
robysue Online
Wiki Editor
Advisory Members

Posts: 1,240
Joined: Oct 2013

Machine: PR Dreamstation BiPAP Auto
Mask Type: Nasal pillows
Mask Make & Model: Swift FX
Humidifier: PR Dreamstation humidfier
CPAP Pressure: min EPAP = 4; max IPAP = 9;
CPAP Software: SleepyHead EncoreBasic EncorePro

Other Comments: Papping since September 2010

Sex: Female
Location: Buffalo, NY

Post: #5
RE: Differnce between BPAP and A-FLex??
Flex provides a variable amount of pressure relief at the beginning of each exhalation. The actual amount of pressure relief depends on both the Flex setting and the force of the exhalation. The maximum amount of pressure is roughly 2 to 2.5 cm when Flex is set to 3 and the exhalation is extremely strong. With A-Flex and C-Flex+, the pressure is increased partway back to the therapeutic setting during the second half of the exhalation and then is increased all the way back up as soon as the inhalation is detected. With SH 1.0 you can see Flex in action in the Pressure graphs for the PR machines.

BiPAP has both an inhalation pressure (IPAP) and an exhalation pressure (EPAP). The difference between IPAP and EPAP is typically in the 3-6cm range, but it can be allowed to be much greater than 6cm. The actual difference between IPAP and EPAP is fixed if you are using "fixed BiPAP" mode, but the difference between IPAP and EPAP is allowed to vary if you are using "Auto BiPAP" mode. At the beginning of each exhalation, the pressure is dropped from IPAP to EPAP. When the beginning of the inhalation is detected, the pressure is increased from EPAP to IPAP.

BiFlex allows the Flex exhalation relief system to work with the BiPAP algorithm. If BiFlex is turned ON, you get an additional variable amount of exhalation relief at the very beginning exhalation that is beyond just the drop from IPAP to EPAP. The amount of additional exhalation relief depends on the BiFlex setting and the strength of the exhalation. The pressure is increased back up to the EPAP setting during the second half of the exhalation. The pressure is increased all the way to IPAP when the beginning of the next inhalation is detected.

Questions about SleepyHead?
See my Guide to SleepyHead
04-11-2016 05:55 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
MrEGuy Offline

Preferred Members

Posts: 27
Joined: Apr 2016

Machine: None
Mask Type: Not using mask
Mask Make & Model: none
Humidifier: none
CPAP Pressure: none
CPAP Software: Not using software

Other Comments:

Sex: Undisclosed
Location:

Post: #6
RE: Differnce between BPAP and A-FLex??
Thanks for that. All clear now :-)
04-12-2016 03:35 AM
Find all posts by this user Post Reply Quote this message in a reply
Post Reply 


Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  philips remstar auto a-flex skylersdad 2 170 11-29-2016 05:47 PM
Last Post: trish6hundred
Question BiPAP vs EPR/Flex etc? SleepyBee 7 275 11-13-2016 08:52 PM
Last Post: Galactus
  [CPAP] Setting up this auto a-flex is really intimidating. SierraMadreMe 6 390 10-27-2016 04:25 AM
Last Post: SierraMadreMe
  Flex settings and hypopneas KSMatthew 4 531 10-21-2016 09:47 PM
Last Post: Sleeprider
  Respironics Flex setting VTSleeper 12 5,683 10-17-2016 02:49 AM
Last Post: Dreams of Green
  [Equipment] Respironics REMstar Auto A-Flex 550P Issue PreciousRoy1981 27 24,139 09-30-2016 06:51 PM
Last Post: Sleeprider
  Respironics REMstar C-flex JenJen 4 494 09-08-2016 07:22 PM
Last Post: trish6hundred

Forum Jump:

Who's Online (Complete List)